11
Piping diagram
* Everything within the red box is Nilan delivery.
18. Connection 1"
19. Flexible hose 1"
20. Shut-off valve
21. P1 circulation pump 130 mm
23. Supplemental electric heating 2 x 3 kW
24. Temperature sensor T18 buffer tank (flow)
25. Flexible hose 10 mm
26. Automatic air vent valve 3/8"
27. Expansion vessel 8 litre
28. Manometer
29. Safety valve 2.5 bar
30. Shut-off valve with particle filter
31. P2 circulation pump
33. Check valve 3/4"
37. Filling tap 1/2"
50. Temperature sensor T23 evaporator element
51. Temperature sensor T20 outdoor temperature
52. Temperature sensor T17 after condenser
53. Temperature sensor T16 before condenser
TT
PI
TT
TT
TT
TT
TC
P2
P1
50
51
52
53
19
19
18
18
20 20
20 2021
37
24
26
25
28 29
30
31
33
27
23
AIR outdoor unit
supply flow
return flow
1" supply flow
1" return flow
Buffer
tank
AIR indoor unit